Short-toed Treecreeper

Species Profile

Short-toed Treecreeper

Certhia brachydactyla

Quick Facts

Conservation

LCLeast Concern

Lifespan

2–3 years[4]

Length

12–13.5 cm

Weight

7.5–11 g

Wingspan

17–20 cm

Migration

Resident

This tiny tree-climbing specialist scurries up trunks with spider-like agility, probing bark crevices for hidden insects with its curved bill.

Also known as: Short-toed Creeper

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Close of up a Short-toed Treecreeper
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Close of up a Short-toed Treecreeper

Appearance

The Short-toed Treecreeper is a small, brown bird with a slender, curved bill and stiff tail feathers. Its upperparts are mottled brown, providing excellent camouflage against tree bark, while the underparts are predominantly white with a buff tinge.

Both sexes look alike, with no significant seasonal plumage changes. Juveniles closely resemble adults but may have slightly more diffuse markings and a shorter bill.

Identification & Characteristics

Colors

Primary
Brown
Secondary
Buff
Beak
Black
Legs
Brown

Attributes

Agility85/100
Strength30/100
Adaptability75/100
Aggression40/100
Endurance65/100

Habitat & Distribution

Short-toed Treecreepers are found throughout much of western and southern Europe, including parts of North Africa and the Middle East. They inhabit deciduous and mixed woodlands, parks, and mature gardens with large trees.

In the UK, they are primarily found in southern and eastern England, with some populations in Wales. Their range has been expanding northward in recent decades, possibly due to climate change.

Distribution

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Diet

The Short-toed Treecreeper's diet consists primarily of small invertebrates found on tree bark. They feed on insects, spiders, and their eggs and larvae, which they extract from crevices using their specialised curved bill.

In winter, they may occasionally supplement their diet with small seeds.

Behaviour

Short-toed Treecreepers exhibit a distinctive spiralling movement as they climb up tree trunks, using their stiff tail feathers for support. They forage by probing into bark crevices with their specialised curved bills.

These birds are generally solitary or found in pairs, occasionally joining mixed-species flocks outside the breeding season.

Calls & Sounds

The Short-toed Treecreeper's call is a high-pitched, thin 'tsee-tsee-tsee'. Their song is a series of high, tinkling notes, often described as 'tit-tit-tit-e-tit'.

During territorial disputes, they may produce a rapid, trilling 'srrri-srrri-srrri' sound.

Nesting & Breeding

Breeding season for Short-toed Treecreepers typically begins in April. Males establish territories and attract females with their songs and display flights.

Nests are built behind loose bark or in tree crevices, constructed from twigs, bark strips, and moss, lined with feathers and hair. Females lay 5-6 white eggs with reddish-brown spots.

Incubation lasts about 14-15 days, primarily by the female. Both parents feed the nestlings, which fledge after 15-17 days. Pairs often raise two broods per season.

Conservation

While the Short-toed Treecreeper is currently listed as Least Concern, it faces localised threats from habitat loss and fragmentation.

Conservation efforts focus on preserving mature woodlands and maintaining a diverse age structure in managed forests to ensure suitable foraging and nesting sites.

LCLeast Concern
[1]

Population

Estimated: 11,000,000 - 19,000,000 mature individuals[3]

Trend: Increasing[2]

Elevation

Up to 2,000 meters

Additional Details

Predators:
Main predators include sparrowhawks, domestic cats, and small mammals such as pine martens and squirrels. Nest predators may include woodpeckers and some corvids.

Birdwatching Tips

  • Look for their characteristic spiralling movement up tree trunks
  • Listen for their high-pitched, thin calls
  • Search in mature woodlands with large, rough-barked trees
  • Observe carefully, as they can be easily confused with the similar Eurasian Treecreeper

Did You Know?

  1. Short-toed Treecreepers can climb up vertical surfaces using their specialised feet and stiff tail feathers.
  2. They are one of the few bird species that almost never climb down trees, instead flying to the base to start over.
  3. Their thin, curved bill is perfectly adapted for probing bark crevices for insects.

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